/*
 *  Copyright 2008-2010 NVIDIA Corporation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#pragma once

#include <thrust/detail/config.h>
#include <thrust/detail/type_traits.h>
#include <thrust/detail/host/detail/general_copy.h>
#include <thrust/detail/host/detail/trivial_copy.h>
#include <thrust/iterator/iterator_traits.h>

namespace thrust {

namespace detail {

namespace host {


namespace dispatch {


template < typename InputIterator,
         typename OutputIterator >
OutputIterator copy(InputIterator first,
                    InputIterator last,
                    OutputIterator result,
                    thrust::detail::false_type) {
    return thrust::detail::host::detail::general_copy(first, last, result);
} // end copy()


template < typename InputIterator,
         typename OutputIterator >
OutputIterator copy(InputIterator first,
                    InputIterator last,
                    OutputIterator result,
                    thrust::detail::true_type) {
    typedef typename thrust::iterator_difference<InputIterator>::type Size;

    const Size n = last - first;
    return thrust::detail::host::detail::trivial_copy_n(&*first, n, &*result);
} // end copy()


} // end dispatch

} // end host

} // end detail

} // end thrust

